From cfa111f794ee1a23ddb89afec5c1c543f74db8e7 Mon Sep 17 00:00:00 2001 From: Corbin McElhanney Date: Thu, 1 Jun 2017 15:40:04 -0400 Subject: [PATCH 0492/4131] drm/amd/display: Don't update surface if dimensions are 0 Signed-off-by: Corbin McElhanney Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 323a5e7..976229e 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1250,8 +1250,15 @@ void dc_update_surfaces_and_stream(struct dc *dc, } } - /* only proceed if we need to make a surface update */ - if (!srf_updates) + /* do not perform surface update if surface has invalid dimensions + * (all zero) and no scaling_info is provided + */ + if (surface_count > 0 && + srf_updates->surface->src_rect.width == 0 && + srf_updates->surface->src_rect.height == 0 && + srf_updates->surface->dst_rect.width == 0 && + srf_updates->surface->dst_rect.height == 0 && + !srf_updates->scaling_info) return; update_type = dc_check_update_surfaces_for_stream( -- 2.7.4